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Guide to the condensing boiler installation assessment procedure for dwellings (Archived)
From 1 April 2005, revised Approved Document L1 of the Building Regulations sets down revised guidance for the efficiency of hot water central heating gas and oil boilers installed in new and existing dwellings. This Guide has been written to help heating installers carry out a condensing boiler installation assessment, using the procedure set out in Appendix G of the revised Approved Document L1.
In force from 1st April 2005.
Office of the Deputy Prime Minister
The Office of the Deputy Prime Minister is now known as the Department for Communities and Local Government (DCLG). Their publications included the Building Regulations Approved Documents, Planning Policy Guidance Notes, and technical reports and fact sheets covering a wide range of subjects within the built environment.
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